Abstract: Disclosed are computer implemented methods for testing astigmatism which display differently colored bars against a contrasting background. In one implementation, parallel colored bars are separated and joined through various angles of rotation against a constant background. In another implementation one set of bars is formed by variable grating pattern which is rotated within an annulus of solid color bars, desirably against a contrasting intermediate background and a reference background having a linear grating pattern.

Abstract: A computer-implemented method for vision diagnosis for lens prescription retrieves vision test data recorded from a computer assisted vision test of a patient. The vision test data of the patient is assessed for suitability for vision diagnosis. Where suitable, the vision test data of the patient is analyzed to display a representation of at least a part of the patient data. The analyzed part of the patient data is then matched with corresponding data from previously optometrically assessed and diagnosed vision data covering a wide range of optical conditions. A diagnosis of the vision of the patient is then established from the matching.

Abstract: Disclosed are computer implemented methods for testing astigmatism which display differently coloured bars against a contrasting background. In one implementation, parallel coloured bars are separated and joined through various angles of rotation against a constant background. In another implementation one set of bars is formed by variable grating pattern which is rotated within an annulus of solid colour bars, desirably against a contrasting intermediate background and a reference background having a linear grating pattern.

Abstract: A method and apparatus are provided for testing the vision of a human subject using a series of eye tests (310). A test setup procedure (312) is run to adjust the settings of a display device (1914) such that graphic objects displayed on the device (1914) conform to a pre-defined appearance. A series of preliminary tests (314), static tests (316) and dynamic tests (318) are displayed on the device (1914), and the responses of the subject are recorded. The tests (310) may be run remotely, for example over the Internet. No lenses are required to run the tests (310).

Abstract: A method and apparatus are provided for testing the vision of a human subject using a series of eye tests (310). A test setup procedure (312) is run to adjust the settings of a display device (1914) such that graphic objects displayed on the device (1914) conform to a pre-defined appearance. A series of preliminary tests (314), static tests (316) and dynamic tests (318) are displayed on the device (1914), and the responses of the subject are recorded. The tests (310) may be run remotely, for example over the Internet. No lenses are required to run the tests (310).